题库 | 考满分，百万出国党的口碑之选。

序号	题目内容
21	If (1 – 1.25)N = 1, then N =
22	$$0.1+{0.1}^{2}+{0.1}^{3}=$$
23	A carpenter constructed a rectangular sandbox with a capacity of 10 cubic feet. If the carpenter were to make a similar sandbox twice as long, twice as wide, and twice as high as the first sandbox, what would be the capacity, in cubic feet, of the second sandbox?
24	A bakery opened yesterday with its daily supply of 40 dozen rolls. Half of the rolls were sold by noon, and 80 percent of the remaining rolls were sold between noon and closing time. How many dozen rolls had not been sold when the bakery closed yesterday?
25	If 2x + y = 7 and x + 2y = 5, then $$\frac{x+y}{3}=$$
26	What is the 25th digit to the right of the decimal point in the decimal form of $$\frac{6}{11}$$
27	The graph above shows the height of the tide, in feet, above or below a baseline. Which of the following is closest to the difference, in feet, between the heights of the highest and lowest tides on July 13 at Bay Cove?
28	150 is what percent of 30?
29	The ratio 2 to $$\frac{1}{3}$$ is equal to the ratio
30	A manufacturer of a certain product can expect that between 0.3 percent and 0.5 percent of the units manufactured will be defective. If the retail price is $2,500 per unit and the manufacturer offers a full refund for defective units, how much money can the manufacturer expect to need to cover the refunds on 20,000 units?
31	A flat patio was built alongside a house as shown in the figure above. If all angles are right angles, what is the area of the patio in square feet?
32	A student`s average (arithmetic mean) test score on 4 tests is 78. What must be the student`s score on a 5th test for the student`s average score on the 5 tests to be 80?
33	In the figure above, what is the ratio of the measure of angle B to the measure of angle A?
34	Lucy invested $10,000 in a new mutual fund account exactly three years ago. The value of the account increased by 10 percent during the first year, increased by 5 percent during the second year, and decreased by 10 percent during the third year. What is the value of the account today?
35	If n is a prime number greater than 3, what is the remainder when $${n}^{2}$$ is divided by 12 ?
36	$$\frac{1}{({1}+\frac{1}{3})}-\frac{1}{(1+\frac{1}{2})}=$$
37	Of the 50 researchers in a workgroup, 40 percent will be assigned to Team A and the remaining 60 percent to Team B. However, 70 percent of the researchers prefer Team A and 30 percent prefer Team B. What is the lowest possible number of researchers who will NOT be assigned to the team they prefer?
38	The positive two-digit integers x and y have the same digits, but in reverse order. Which of the following must be a factor of x + y?
39	In a certain sequence of 8 numbers, each number after the first is 1 more than the previous number. If the first number is -5, how many of the numbers in the sequence are positive?
40	How many minutes does it take John to type y words if he types at the rate of x words per minute?

序号

题目内容

If (1 – 1.25)N = 1, then N =

$$0.1+{0.1}^{2}+{0.1}^{3}=$$

A carpenter constructed a rectangular sandbox with a capacity of 10 cubic feet. If the carpenter were to make a similar sandbox twice as long, twice as wide, and twice as high as the first sandbox, what would be the capacity, in cubic feet, of the second sandbox?

A bakery opened yesterday with its daily supply of 40 dozen rolls. Half of the rolls were sold by noon, and 80 percent of the remaining rolls were sold between noon and closing time. How many dozen rolls had not been sold when the bakery closed yesterday?

If 2x + y = 7 and x + 2y = 5, then $$\frac{x+y}{3}=$$

What is the 25th digit to the right of the decimal point in the decimal form of $$\frac{6}{11}$$